Signature logo stereo earphones let you listen in style! Driver Unit: 13 mm. Browse Playboy Comfort Plus Earphones reviews and ratings or submit your own rating and review to help other shoppers. Frequency Response: 20 Hz_20kHz. Impedance: 32 Ohm. Sensitivity: 112 dB/mW. Input Plug diameter: 3.5mm. Cord Length Approx. 1.2 m.